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Author:

Jing, Guodong (Jing, Guodong.) | Shi, Yunhui (Shi, Yunhui.) (Scholars:施云惠) | Kong, Dehui (Kong, Dehui.) (Scholars:孔德慧) | Ding, Wenpeng (Ding, Wenpeng.) | Yin, Baocai (Yin, Baocai.) (Scholars:尹宝才)

Indexed by:

EI Scopus SCIE

Abstract:

Sparse representation provides a new method of generating a super-resolution image from a single low resolution input image. An over-complete base for sparse representation is an essential part of such methods. However, discovering the over-complete base with efficient representation from a large amount of image patches is a difficult problem. In this paper, we propose a super-resolution construction based on multi-space sparse representation to efficiently solve the problem. In the representation, image patches are decomposed into a structure component and a texture component represented by the over-complete bases of their own spaces so that their high-level features can be captured by the bases. In the implementation, a prior knowledge about low resolution images generation is combined to the typical base construction for high construction quality. Experiment results demonstrate that the proposed method significantly improves the PSNR, SSIM and visual quality of reconstructed high-resolution image.

Keyword:

Over-complete bases Sparse representation Total variation Super-resolution

Author Community:

  • [ 1 ] [Jing, Guodong]Beijing Univ Technol, Coll Comp Sci & Technol, Beijing Municipal Key Lab Multimedia & Intelligen, Beijing 100124, Peoples R China
  • [ 2 ] [Shi, Yunhui]Beijing Univ Technol, Coll Comp Sci & Technol, Beijing Municipal Key Lab Multimedia & Intelligen, Beijing 100124, Peoples R China
  • [ 3 ] [Kong, Dehui]Beijing Univ Technol, Coll Comp Sci & Technol, Beijing Municipal Key Lab Multimedia & Intelligen, Beijing 100124, Peoples R China
  • [ 4 ] [Ding, Wenpeng]Beijing Univ Technol, Coll Comp Sci & Technol, Beijing Municipal Key Lab Multimedia & Intelligen, Beijing 100124, Peoples R China
  • [ 5 ] [Yin, Baocai]Beijing Univ Technol, Coll Comp Sci & Technol, Beijing Municipal Key Lab Multimedia & Intelligen, Beijing 100124, Peoples R China

Reprint Author's Address:

  • 施云惠

    [Shi, Yunhui]Beijing Univ Technol, Coll Comp Sci & Technol, Beijing Municipal Key Lab Multimedia & Intelligen, Beijing 100124, Peoples R China

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Source :

MULTIMEDIA TOOLS AND APPLICATIONS

ISSN: 1380-7501

Year: 2014

Issue: 2

Volume: 70

Page: 741-755

3 . 6 0 0

JCR@2022

ESI Discipline: COMPUTER SCIENCE;

ESI HC Threshold:188

JCR Journal Grade:2

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count: 13

SCOPUS Cited Count: 13

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 3

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